摘要
对传统型地下渗滤系统进行了改进，建立了一套新型的地下渗滤试验装置。该装置成功启动65d后采用强制通风的手段和间歇进水连续出水方式进行研究。结果表明，强制通风的结构改进防止了堵塞，提高了抗冲击负荷的能力，在进水量8L／次，HRT为15h，通风时间为30-60min的工况下，CODCr、TN、NH3-N、TP的去除率分别达到78．3％、48．8％、98．2％和93．2％，这将为新型地渗系统的设计提供新的思路。
A new improved subsurface infiltration setting was built by renovating traditional one. The experiment was conducted to investigate purifying dispersedly distributed wastewater. The test was based on forced aeration and batchwise inflow of wastewater and continuous effluent outlet, the result indicated that forced aeration avoided blocking the system, and adapted hydraulic loading change. Under the condition of 8 L, 15 h and 30-60 min for batch flow, hydraulic resident time and forced aeration time respectively, the removal ratio of CODCr, TN, NH3- N and TP reached to 78. 3%, 48. 8%, 98.2% and 93.2% respectively. The result suggests a solution to design a novel subsurface infiltration system in the future.
出处
《给水排水》
CSCD
北大核心
2008年第3期52-55,共4页
Water & Wastewater Engineering
基金
国家高技术研究发展(863)计划项目(2002AA601130)
江苏省环保厅农村环境综合治理技术开发与示范项目(2005012)
江苏省饮用水源环境安全与保障体系研究与示范项目(BM2006716)
关键词
分散污水处理
地下渗滤系统
强制通风
改进
Dispersedly distributed wastewater
Subsurface infiltration system
Forced aeration
Renovation
